<h3>描述</h3>
<p>Checkbox复选框组件，支持聚焦autofocus/focus()/tabindex演示</p>
<h3>示例</h3>
<p>1.autofocus演示：</p>
<input type="checkbox" tiCheckbox autofocus label="autofocus初始化焦点" />
<br />
<br /><br /><br />
<p>2.focus()演示：</p>
<input id="myinput" type="checkbox" tiCheckbox label="element.focus()" />
<button type="button" onclick="document.getElementById('myinput').focus()">点击获取焦点</button>
<span>document.getElementById('myinput').focus()</span>
<br />
<input #myinput2 type="checkbox" tiCheckbox label="compnent.focus()" />
<button type="button" (click)="myinput2.focus()">点击获取焦点</button>
<span>(click)="myinput2.focus()"</span>
<button type="button" (click)="myinput2.blur()">点击失去焦点</button>
<span>(click)="myinput2.blur()"</span>
<br /><br /><br />
<p>3.tabindex演示：</p>
<input type="checkbox" tiCheckbox tabindex="4" label="tabindex=4" />
<br />
<input type="checkbox" tiCheckbox tabindex="2" label="tabindex=2" />
<br />
<input type="checkbox" tiCheckbox tabindex="6" label="tabindex=6" />
<br />
<input type="checkbox" tiCheckbox [disabled]="myDisabled" tabindex="3" label="tabindex=3，disabled={{myDisabled}}" />
<button type="button" (click)="changeDisabled()">点击改变disabled</button>
<p>置灰时不参与tabindex</p>
<br /><br />
<p>4.click演示：</p>
<input type="checkbox" tiCheckbox label="点我" />
